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公开(公告)号：US11407392B2
公开(公告)日：2022-08-09
申请号：US16636656
申请日：2018-09-05
Applicant: ADVICS CO., LTD.
Inventor： Ken Kuzuya , Yasuhito Ishida , Tomotaka Asano , Takayuki Yamamoto
Abstract: The braking device for vehicles includes a reduction amount setting part for setting the amount by which to reduce the revolution of a pump motor during maintenance or reduction of controllable differential pressure so that the reduction amount decreases as the probability increases of needing to discharge the brake fluid by pumps, during a period from when a brake controller begins reducing the revolution until the lapse of prescribed time.
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公开(公告)号：US11104319B2
公开(公告)日：2021-08-31
申请号：US16316878
申请日：2017-07-14
Applicant: ADVICS CO., LTD.
Inventor： Yasuhito Ishida , Takayuki Yamamoto
Abstract: A braking control device for imparting brake fluid pressure on wheel cylinders in response to operation of a braking operation member to produce braking force includes: first and second fluid pressure units for imparting brake fluid pressure by first and second power sources respectively; and a determining device for determining whether or not operation of the first fluid pressure unit is appropriate. When the determining device determines that operation is appropriate, the first fluid pressure unit imparts brake fluid pressure based on a suitability characteristic, which is the relationship between the brake fluid pressure and the braking operation member operation amount, set in advance. The second fluid pressure unit has proximity characteristics, generally matching the suitability characteristic, and notification characteristics, different from the suitability characteristic. When operation of the first fluid pressure unit is not appropriate, the second fluid pressure unit imparts brake fluid pressure based on the proximity or notification characteristics.
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公开(公告)号：US11014542B2
公开(公告)日：2021-05-25
申请号：US16320861
申请日：2017-07-26
Applicant: ADVICS CO., LTD.
Inventor： Yasuhito Ishida , Takayuki Yamamoto
Abstract: A braking control device comprises: an operational displacement sensor detecting operational displacement of a braking member; a first hydraulic pressure unit that reads operational displacement as a first displacement processing value via a first displacement signal line and adjusts braking hydraulic pressure based on the first displacement processing value; a second hydraulic pressure unit that reads operational displacement as a second displacement processing value via a second displacement signal line and adjusts braking hydraulic pressure based on the second displacement processing value; and a communication bus transmitting signals between the first and second hydraulic pressure units. The first hydraulic pressure unit acquires the second displacement processing value via the communication bus and determines suitability/unsuitability of the first displacement processing value. When the first displacement processing value is suitable (unsuitable), the first hydraulic pressure unit adjusts the braking hydraulic pressure on the basis of the first (second) displacement processing value.
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公开(公告)号：US10940844B2
公开(公告)日：2021-03-09
申请号：US16335410
申请日：2017-09-07
Applicant: ADVICS CO., LTD.
Inventor： Tatsushi Kobayashi , Takayuki Yamamoto , Yasuhito Ishida
Abstract: The vehicular brake device includes a determination unit, a ratio setting unit, and the control unit. The determination unit determines the operating condition of a vehicular brake device. The ratio setting unit sets, on the basis of the result of determination by the determination unit, a first ratio which is the ratio of a wheel pressure generated by a piston drive unit to a target wheel pressure, and a second ratio which is the ratio of a wheel pressure generated by a hydraulic pressure adjusting unit to the target wheel pressure. The control unit controls the piston drive unit and the hydraulic pressure adjusting unit on the basis of the first ratio and the second ratio.
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公开(公告)号：US20200039490A1
公开(公告)日：2020-02-06
申请号：US16335410
申请日：2017-09-07
Applicant: ADVICS CO., LTD.
Inventor： Tatsushi Kobayashi , Takayuki Yamamoto , Yasuhito Ishida
Abstract: The vehicular brake device includes a determination unit, a ratio setting unit, and the control unit. The determination unit determines the operating condition of a vehicular brake device. The ratio setting unit sets, on the basis of the result of determination by the determination unit, a first ratio which is the ratio of a wheel pressure generated by a piston drive unit to a target wheel pressure, and a second ratio which is the ratio of a wheel pressure generated by a hydraulic pressure adjusting unit to the target wheel pressure. The control unit controls the piston drive unit and the hydraulic pressure adjusting unit on the basis of the first ratio and the second ratio.
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Patent Agency Ranking
公开(公告)号：US09889831B2
公开(公告)日：2018-02-13
申请号：US14426697
申请日：2013-09-04
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA , Yoshiyuki Yasui , Hiroyuki Kodama , Takuya Hirano , Naoki Yabusaki , Takayuki Yamamoto
Inventor： Yoshiyuki Yasui , Hiroyuki Kodama , Takuya Hirano , Naoki Yabusaki , Takayuki Yamamoto
IPC: B60T8/00 , B60T8/1761 , B60T13/74 , B60T8/171 , B60T8/172
CPC classification number: B60T8/1761 , B60T8/171 , B60T8/172 , B60T8/17616 , B60T13/741 , B60T2240/06
Abstract: A vehicle brake control device generates rear wheel braking torque by an electric motor by pressing a friction member against a rotating member rotating together with the rear wheel, reduces rear wheel braking torque by controlling the electric motor based on a target energization amount calculated from a slip state quantity of the rear wheel, and rapidly stops electric motor rotation motion based on an adjusted target energization amount calculated from the target energization amount and a slip state quantity of a front wheel.
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公开(公告)号：US12049213B2
公开(公告)日：2024-07-30
申请号：US17256884
申请日：2019-08-29
Applicant: ADVICS CO., LTD.
Inventor： Takayuki Yamamoto
IPC: B60T8/40 , B60T8/1755 , B60T8/1761 , B60T8/44 , B60T8/48
CPC classification number: B60T8/1755 , B60T8/1761 , B60T8/441 , B60T8/4836
Abstract: A brake control device includes an electric pump, a pressure adjustment valve that adjusts a hydraulic pressure of a brake fluid discharged by the electric pump to an adjustment hydraulic pressure and supplies the brake fluid in a rear wheel cylinder, and a master unit provided with a servo chamber into which brake fluid at the adjustment hydraulic pressure is supplied and in which the adjustment hydraulic pressure is converted into a forward force of a master piston, and a master chamber fluidically separated from the servo chamber by the master piston and connected to the front wheel cylinder and in which a rearward force converted from the hydraulic pressure in the front wheel cylinder and is applied to the master piston. Also included is an input unit provided with an input chamber and a simulator, and a controller configured to control the electric pump and the pressure adjustment valve.
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公开(公告)号：US11718181B2
公开(公告)日：2023-08-08
申请号：US16967432
申请日：2019-02-05
Applicant: ADVICS CO., LTD.
Inventor： Takayuki Yamamoto , Hiroyuki Kodama , Hiroyuki Ando
CPC classification number: B60L7/26 , B60T1/10 , B60W30/18127 , B60L2240/463 , B60T13/586 , B60T2270/604 , B60T2270/608
Abstract: A vehicle includes a regenerative generator on a front wheel. A braking control device includes an actuator that applies a front wheel torque and a rear wheel torque, and a controller that individually adjusts the front wheel torque and the rear wheel torque. The controller is configured to determine the front wheel torque and the rear wheel torque to zero when a regenerative braking force Fg generated by the regenerative generator has not reached a maximum regenerative force Fx which is a generatable maximum value. On the other hand, the controller is configured to increase the rear wheel torque from zero before increasing the front wheel torque from zero when the regenerative braking force Fg reaches the maximum regenerative force Fx.
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公开(公告)号：US11364805B2
公开(公告)日：2022-06-21
申请号：US16645637
申请日：2018-09-26
Applicant: ADVICS CO., LTD.
Inventor： Takayuki Yamamoto
IPC: B60L7/26 , B60T8/17 , B60T8/1755 , B60T13/58
Abstract: A brake control mounted in a vehicle equipped with a regenerative generator on either the front wheels or the rear wheels including a first pressure adjusting unit that adjusts a liquid pressure generated by a first electric motor to a first liquid pressure and provides the first liquid pressure to wheel cylinders of wheels on one side; and a second pressure adjusting unit that is configured by a fluid pump, which is driven by a second electric motor, and a pressure adjusting valve, and that performs adjustment to increase the first liquid pressure to a second liquid pressure and provides the second liquid pressure to wheel cylinders of wheels on the other side.
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公开(公告)号：US11117558B2
公开(公告)日：2021-09-14
申请号：US16645114
申请日：2018-09-28
Applicant: ADVICS CO., LTD.
Inventor： Ken Kuzuya , Tomotaka Asano , Yasuhito Ishida , Tatsushi Kobayashi , Takayuki Yamamoto
Abstract: This vehicle brake device comprises: a simultaneous driving determination section which determines whether it is necessary to simultaneously drive an upstream-side motor and a downstream-side motor; and a PWM control section which, when the determination result by the simultaneous driving determination section is in the affirmative, changes the duty ratio of the PWM signal to be output to the upstream-side motor so as to be smaller than when the determination result by the simultaneous driving determination section is in the negative, and uses PWM control to drive the upstream-side motor.
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